Unisteel & engineering well known manufacturer, exporter and supplier of Stainless Steel 17-4H Flanges, These UNS N08904 Flanges are available in different range of diameters, wall thicknesses and sizes at market leading prices. Grade 904L Flanges contains high amounts of expensive ingredients, such as molybdenum and nickel.
The austenitic structure also gives WerkdtoffNr. 1.4539 SS 904L Slip On Flanges excellent toughness, even down to cryogenic temperatures.
We are making SS 904L Weld Neck Flanges that are particularly created in a way that the separation crosswise over of the channel perfectly fits the width of the Stainless Steel 17-4H Flanges. We used high ss grade while making of SS 904L Spectacle Blind Flanges, which is one of the few stainless steels that at temperatures of up to 35 Degree C/ 95 Degree F provides full resistance in dilute sulfuric acid environments within the entire range of concentration,
Type 17-4 PH Stainless steel is the most widely used of all of the precipitation- hardening stainless steels. Its
valuable combination of properties gives designers opportunities to add reliability to their products while
simplifying fabrication and offen reducing costs. Type 17-4 PH is a martensitic precipitation-hardening stainless
steel that provides an outstanding combination of high strength, good corrosion resistance, and good mechanical
properties at temperatures up to 600o F (316oC). Its unique combination of properties make this alloy an effective
solution to many design and production problems.
Stainless Steel 17-4H Flanges Specifications
Stainless Steel 17-4H UNS S17400
ASTM A182, ASME SA182
ANSI / ASME B16.5, B16.47 Series A & B, B.16.48, BS4504, BS10, DIN, EN-1092, MSS SP44
Slip on Flanges (SORF), Threaded Flanges, Weld neck Flanges (WNRF), Blind Flanges, Socket weld Flanges, Lap Joint Flanges, Ring Type Joint Flanges, Spectacle Blind Flanges, Spacer Ring Flanges, Long weld Neck Flanges, Nipo Flange, Nipolet Flanges, Plate Flanges, Flat Flange, Orifice Flanges, Forged Flanges
Flange Face Type
Flat Face (FF), Raised Face (RF), Ring Type Joint(RTJ)
SS 17-4 PH
Resistance to Corrosion :
Type 17-4 PH stainless steel has excellent resistance. It withstand corrosive attack better than any of the
standard hardenable stainless steels and is comparable to type 304 in most media. this has been tested in a
wide variety of corrosive conditions in the petrochemical, petroleum, paper, dairy and food processing
industries, and in applications such as boat shafting.
Specifications Equivalents :
SA564, SA693, SA705, Type 630.
5604, 5604, 5622, 5643, 5825.
A564, A693, A705, Type 360
W. Nr / EN
Typical Mechanical Properties of Sheets and Strip - Cold Flattened (Annealed)
UTS (Tensile) Ksi (Mpa)
.02% Yield Strength Ksi (Mpa)
Elongation % in 2” (51mm)
Hardness Rockwell C
Type 17- 4 PH stainless steel has excellent mechanical properties. For applications requiring high strength and
hardness as well as corrosion resistance, Type 17- 4 PH stainless is an outstanding choice, and it is more cost
effective than many high nickel non-ferrous alloys.
General Characteristics :
• Excellent resistance to corrosion
• Provide toughness in both base metals and welds.
• Well suited to applications that require ease of fabrication and then the addition of strength / hardness for improved reliability
• Aerospace applications
• Chemical processing equipment
• Oil and Petroleum refining equipment
• Food processing equipment
• General metalworking
Other Types of SS 904L Flanges Fittings
SS 904L SORF Flanges
UNS N08904 SS 347H Flanges
WNR. 1.4539 Pipe Flanges
SS 904L Blind Flanges
SS 904L Spacer Ring Flanges
UNS N08904 Nipolet Flanges
UNS N08904 Ring Type Joint Flanges
SS 904L Nipolet Flanges
SS 904L Flat Flange
SS 904L Nipo Flange
SS 904L Long weld Neck Flanges
SS 904L Lap Joint Flanges
Countries We Export to
Unisteel & engineering s Corporation manufactures and exports Stainless Steel 17-4H Flanges | WNR. 1.4539 | UNS N08904 Flanges to various countries such as Saudi Arabia, Bangladesh, United States, United Arab Emirates, Canada, Angola, Argentina, Austria, Azerbaijan, Pakistan, Peru, Chile, Kuwait, Mexico, Malaysia, Nigeria, Serbia, Singapore, Taiwan, Chile, Venezuela, Ecuador, Netherlands, Brazil, Vietnam, South Africa, Nigeria, Mexico, Turkey, Hungary, Algeria, Belarus, Belgium, Bhutan, Bolivia, Bulgaria, Croatia, Czech Republic, Estonia, Finland, Greece, Italy, Japan, Libya, Colombia, Ghana, Iran, Denmark, Poland, Australia, Afghanistan, Bahrain, Costa Rica, Egypt, Iraq, Jordan, South Korea, Kazakhstan, Sri Lanka, Lithuania, Norway, Oman, Philippines, Poland, Qatar, Spain, France, United Kingdom, Indonesia, Israel, Iran, Russia, Romania, Thailand, Trinidad & Tobago,Tunisia, Ukraine, Yemen, Hong Kong, Gabon, China, Portugal, Switzerland, New Zealand, Sweden, Slovakia, Kenya, Lebanon, Morocco, Mongolia
Cities We Deliver to
Unisteel & engineering s Corporation manufactures and exports Stainless Steel 17-4H Flanges | WNR. 1.4539 | UNS N08904 Flanges to multiple cities such as Mumbai, Thane, Navi Mumbai, Pune, Pimpri-Chinchwad, Vadodara, Kolkata, Gujarat, Gurgaon, Ahmedabad, Seoul, Hyderabad, Nashik , Singapore, Abu Dhabi, Tehran, Calgary, Noida, Riyadh, London, Coimbatore, Jakarta, Istanbul, Bangkok, Kuwait City, Sharjah, Muscat, Edmonton, Busan, Mexico City, Doha, New Delhi, Bengaluru, Chennai, Surat, Bhopal, Ulsan, Faridabad,Gujarat, Houston, Dubai, Jeddah, Aberdeen, Cairo, Geoje-si, Perth, Santiago, Chandigarh, Indore, Kuala Lumpur, Rio de Janeiro, Dammam, Melbourne, Madrid, La Victoria, Bogota, Lahore, Los Angeles, Algiers, Chiyoda, Ankara, Ho Chi Minh City, Toronto, Hong Kong, Howrah, Sydney, Ahvaz, Karachi, Rajkot, Brisbane, Petaling Jaya, Ernakulam, Secunderabad, Gimhae-si, Al Jubail, Port-of-Spain, Thiruvananthapuram, Milan, Atyrau, Lagos, Hanoi, New York, Caracas, Vung Tau, Al Khobar, Manama, Montreal, Granada, Courbevoie, Visakhapatnam, Ludhiana, Moscow, Dallas, Haryana, Colombo